Turtle Plate Fan (7″) mounts to your kennel via pre-molded insert – “medium” fits Mid-Size and Medium Ruff Land Kennels; “large” fits Intermediate, Large or XL Ruff Land™ Kennels; not compatible when using Side Latch Rod Locking kit. What’s Included: One 7” Turtle Plate fan mounted to a turtle plate pre-molded insert (2 sizes – “medium” fits Mid-Size and Medium Ruff Land Kennels; “large” fits Intermediate, Large or XL Ruff Land™ Kennels;) 8′ single cigarette lighter cord Additional cords are available for purchase separately.